Explosion-proof level of energy storage container

Does a lithium-ion energy storage unit need explosion control?

To address the safety issues associated with lithium-ion energy storage, NFPA 855 and several other fire codes require any BESS the size of a small ISO container or larger to be provided with some form of explosion control. This includes walk-in units, cabinet style BESS and buildings.

Are lithium-ion battery energy storage stations prone to gas explosions?

Here, experimental and numerical studies on the gas explosion hazards of container type lithium-ion battery energy storage station are carried out. In the experiment, the LiFePO 4 battery module of 8.8kWh was overcharged to thermal runaway in a real energy storage container, and the combustible gases were ignited to trigger an explosion.

Is a battery module overcharged in a real energy storage container?

The battery module of 8.8kWh is overcharged in a real energy storage container. The generation and explosion phenomenon of the combustible gases are analyzed. The numerical study on gas explosion of energy storage station are carried out. Lithium-ion battery is widely used in the field of energy storage currently.

How do you protect a battery energy storage system?

Three protection strategies include deploying explosion protection, suppression systems, and detection systems. 2. Explosion vent panels are installed on the top of battery energy storage system shipping containers to safely direct an explosion upward, away from people and property. Courtesy: Fike Corp. Explosion Protection.

How do I design an explosion prevention system for an ESS?

The critical challenge in designing an explosion prevention system for a ESS is to quantify the source term that can describe the release of battery gas during a thermal runaway event.

Can a flammable battery gas source be used for explosion control?

NFPA 855 recommends that a UL 9540A ( ANSI/CAN/UL, 2019) test be used to evaluate the fire characteristics of an ESS undergoing thermal runaway for explosion control safety systems. An approach to determine a flammable battery gas source term to design explosion control systems has been developed based on UL 9540A or similar test data.